Environment-identity-02.js (953B)
1 // frame.environment is different for different activations of a scope. 2 3 var g = newGlobal({newCompartment: true}); 4 var dbg = Debugger(g); 5 g.eval("function h() { debugger; }"); 6 var arr; 7 dbg.onDebuggerStatement = function (hframe) { 8 var e = hframe.older.environment; 9 assertEq(arr.indexOf(e), -1); 10 arr.push(e); 11 }; 12 13 function test(code, expectedHits) { 14 arr = []; 15 g.eval(code); 16 assertEq(arr.length, expectedHits); 17 } 18 19 // two separate calls to a function 20 test("(function () { var f = function (a) { h(); return a; }; f(1); f(2); })();", 2); 21 22 // recursive calls to a function 23 test("(function f(n) { h(); return n < 2 ? 1 : n * f(n - 1); })(3);", 3); 24 25 // separate visits to a block in the same call frame 26 test("(function () { for (var i = 0; i < 3; i++) { let j = i * 4; h(); }})();", 3); 27 28 // two strict direct eval calls in the same function scope 29 test("(function () { 'use strict'; for (var i = 0; i < 3; i++) eval('h();'); })();", 3);